"When I see an adult on a bicycle, I do not despair for the human race."

H.G. Wells

A bicycle is the most energy efficient vehicle devised to date, perhaps ever. According to Eric Sorenson and the Sightline Institute in Seven Wonders for a Cool Planet, "A human on a bicycle is more efficient (in calories expended, per pound, per mile) than a train, truck, airplane, boat, automobile, motorcycle,

skateboard, canoe or jet pack. Cycling is more efficient than walking which takes three times as many calories per mile. Pound for pound a person riding a bike can go further on a calorie of food than a gazelle can running, a salmon swimming, or an eagle flying."

Bicycles, besides being great fun to ride, are a wonderful vehicle for running short distance errands and shopping, while cars are most polluting on short distance trips because their engines produce up to four times more carbon monoxide while warming up than at normal operating temperatures.

Commuting to work on a bicycle is also a great way to care for creation and save money. For instance if one million people replace just one ten mile motor vehicle trip with one bicycle trip it world result in the following savings: 500,000 gallons of gasoline, $1,500,000 saved on gasoline @$3.00 a gallon, and 328,000 pounds of carbon monoxide would not be produced. (Colorado Department of Health) Besides being the most efficient vehicle ever made, bicycles are good for the soul and the planet.